microRNA is older than we think

The scientist reports that MicroRNAs control gene expression in a single-celled alga Chlamydomonas reinhardtii the  first single-celled organism in which microRNAs have been discovered. 

The finding suggests that microRNAs evolved earlier than previously thought, according to the authors. The study published in Nature   by researchers David Baulcombe of the Sainsbury Laboratory in UK

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2 Responses

  1. I’m not clear why this would mean microrna’s evolved earlier than we think. They’re present in plants. They’re present in animals. Why wouldn’t they be present in the common ancestor? The paradigm they claim to overthrough doesn’t seem very well thought out.

  2. […] The scientist reports that MicroRNAs control gene expression in a single-celled alga Chlamydomonas reinhardtii the first single-celled organism in which microRNAs have been discovered. The finding… …more […]

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